Tail-guide for band-saws.



F. T. MQDONOUGH.

TAIL GUIDE FOR BAND SAWS.

APPLICATION rum) 212.21, 1908.

986,251. Patented 0ct.5,1909.

3 SHEETS-SHEET l.

ANDREW a Mum! bow PHOTOUYNOGMIKRQ. WASMGM, n b:

F. T. MODONOUGH. TAIL GUIDE FOR BAND SAWS. APPLICATION FILEDIEB.-21,1908.

936,251. Patented 0011.5, 1909.

3 SHEETS-SHEET 2.

,WZU A UWagb EIMWM F. T. MODONOUGH- TAIL GUIDE FOR BAND SAWS.APPLICATION FILED IEB.21,1908.

936,251. Patented 0012.5,1909.

I 3 SHEETS-SHEET 3.

FRANCIS THOMAS McDONOUGI-I, OF EAU CLAIRE, WISCONSIN.

TAIL-GUIDE FOR BAND-SAWS.

Specification of Letters Patent.

Patented Oct. 5, 1909.

Original application filed March 20, 1907, Serial No. 363,526. Dividedand this application filed February To all whom it may concern:

Be it known that I, FRANCIS T. MoDoN- oUGH, a citizen of the UnitedStates, residmg at Eau Claire, in the county of Eau Claire and State ofWisconsin, have invented a new and useful Tail-Guide for Band-Saws, ofwhich the following is a specification.

This application is a division of the application filed by me Mar. 20,1907, Serial No.

363,526, for an improvement in horizontal band resawing machines, andthe invention relates to a tail guide.

The object of the present invention is to nnprove the construction oftail guides for band saw wheels, and to provide a simple andcomparatively inexpensive one, adapted to be opened and closed from thefront of the machine to relieve the band saw should the tail guidebecome clogged by a sliver or splinter of wood.

With these and other objects in view, the mvention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawings, and pointed out in the claimshereto appended; it being understood that various changes in the form,proportion, size and minor details of construction, within the scope ofthe claims, may be resorted to without departing from the spirit orsacrificing any of the advantages of the invention.

In the drawings :Figure l is a plan View of a portion of a horizontalband resawing machine, provided with a tail guide, constructed inaccordance with this invention. Fig. 2 is a rear elevation of the same.Fig. 3 is a side elevation. Fig. 4 is a front elevation. Fig. 5 is anenlarged detail plan view of the tail band saw guide. Fig. 6 is anenlarged detail sectional view, taken substantially on the line 66 ofFig. 5. Fig. 7 is an enlarged detail side View of the tail guide. Fig. 8is a detail sectional view, taken substantially on the line 88 of Fig.5.

Like numerals of reference designate corresponding parts in all thefigures of the drawings.

The band saw guard 285 has mounted on it a relatively stationary ornon-adjustable tail band saw guide 311, composed of upper and lowermembers 312 and 313, which are adapted to be opened and closed torelieve the band saw, should the tail guide become Serial No. 417,110.

clogged with a sliver, or the like. The upper and lower members areprovided with adjustable pegs 314 and 315, which are secured in theiradjustment by means of set screws 316 and 317. The upper member 312 isformed integral with a bracket or plate 318, or otherwise secured to theguard 285 and provided with a sleeve or bearing 319 for a rock shaft320. The bracket or plate 318 is arranged upon the top of the saw guard,and the upper member of the saw guide extends beyond the saw guard in adirection in line with the saw.

The lower member is provided at the top with an upwardly extendingapproximately semi-circular arm 321, terminating at its upper end intoan eye 322, through which the inner end of the rock shaft or pivot 320extends. The curved arm pivotally suspends the lower member of the sawguide at a point beyond the saw guard, and it permits the lower memberto swing downwardly away from the horizontal band saw in a directiontransversely of the same. The eye 322 fits between the inner end of thesleeve or bearing 319 and an upwardly extending lug 323 of the uppermember 312. The lug 323, which is arranged in spaced relation to theinner end of the sleeve or bearing 319, forms a solid abutment for theinner end 321 of the shaft or pivot 320.

An upwardly extending inclined arm 325 is mounted on the outer end 326of the shaft or pivot 320, which has its ends reduced, as shown, to fitthe eye 322 of the lower member and a sleeve or laterally enlarged eye327 of the arm 325. The arm is provided with a slightly curved slot 328,which receivesa projecting pin or stud 329 of an oscillatory lever 330,and the latter is pivoted at its upper end to a standard or support 332,and is adapted to be swung forwardly from the position illustrated inFig. 7 of the drawings to open the tail band saw guide. hen the lever330 is swung forwardly, the lower member of the tail band saw guide isswung downwardly, which will relieve the band saw, should the tail bandsaw guide become clogged by a sliver or splinter of wood. As the lowermember swings downwardly gravity will assist the movement and also theclearing of the saw guide, as any accumulation will readily fall out ofthe guide when the lower member is swung downward.

The standard or support 332, which exing of a horizontal arm Theoperating f rod will enable the tail saw guide to be opened and closedby the operator without leaving his position at the front of themachine.

Having thus fully described my invention,what I claim as new and desireto secure by Letters Patent, is

1. In a sawing machine, the combination with a horizontal band saw, of aband saw guide including upper and lower members located, respectively,above and below the horizontal band saw, the upper member.

maintaining a fixed position at all times with relation to the saw andthe lower member being hinged to and arranged to swing downwardly fromthe lower face of the saw to clear the saw guide, and operating meansconnected with the lower member for swinging the same toward and fromthe saw.

2. In a sawing machine, the combination with a horizontal band saw, of aband saw guide including upper and lower members located, respectively,above and below the horizontal band saw, the lower member be ing hingedand arranged to swing downwardly away from the saw in a directiontransversely thereof to clear the saw guide, and operating meansconnected with the lower member for swinging the same toward and fromthe saw and constituting the sole means for retaining the lower memberin cooperative relation with the saw.

3. In a sawing machine, the combination with a horizontal band saw, of aband saw guide including upper and lower members located, respectively,above and below the band saw, the upper member maintaining a fixedposition at all times with relation to the saw, and the lower memberbeing provided with a curved arm extending upwardly around the back ofthe band saw and pivoted to the upper member to permit the lower memberto swing downwardly from the lower face of the band saw, and operatingmeans connected with the curved arm for swinging the lower member to andfrom the saw.

4. In a sawing machine, the combination with a horizontal band saw, of asaw guide composed of upper and lower guiding members located,respectively, above and below the horizontal band saw, the upper membermaintaining a fixed position at all times with relation to the saw andthe lower guiding member being provided with an arm hinged to the upperguiding member and permitting the lower guiding member to swingdownwardly from the lower face of the band saw should the guide becomeclogged, and operating means connected with the said arm for swingingthe lower member to ward and from the saw.

5. In a sawing machine, the combination with a horizontal band saw, of aband saw guide composed of an upper member maintaining a fixed positionat all times with relation to the saw, and a hinged lower memberprovided with a rigidly connected slotted arm and arranged to swingdownwardly from the lower face of the band saw, an oscillatory leverhaving means operating in the slot to swing the arm for opening andclosing the band saw guide, and operating means for the lever.

6. In a sawing machine, the combination with a horizontal band saw, anda saw guard, of a band saw guide mounted upon the top of the saw guardand supported wholly thereby and extending beyond the said saw guard ina direction in line with the saw and receiving the latter.

7. In a sawing machine, the combination with a horizontal band saw, anda saw guard, of a band saw guide mounted upon the top of the saw guardand supported wholly thereby and extending beyond the saw guard in adirection in-line with the saw and provided with a hinged lower mem berarranged to swing downwardly from the lower face of the saw to open thesaw guide and relieve the saw should the guide become clogged, and meansalso mounted upon the top of the saw guard and connected with the hingedmember for oscil lating the same.

8. In a sawing machine, the combination with a horizontal band saw, anda saw guard,

of a saw guide including an upper member provided with a bracket securedupon the top of the saw guard, said upper member being extended beyondthe saw guard in a direction in line with the band saw and supported bythe said bracket, and a lower member hinged to the upper member andsupported by the same at a point beyond the saw guard and arranged toswing clownwardly from the lower face of the band saw.

9. In a sawing machine, the combination with a horizontal band saw, anda saw guard, of a saw guide including an upper member provided with abracket secured upon the top of the saw guard, said upper member beingextended beyond the guard in a direction in line with the saw, and alower mem ber hinged to the upper member at a point beyond the saw guardand provided with an arm, a standard also mounted upon the top of thesaw guard and located at a point beyond the bracket, an inclinedoscillatory lever pivoted at its upper end to the standard and connectedat its lower end With the arm of the lower member, and operatingmechanism for swinging the said lever to open and close the saw guide.

10. In a sawing machine, the combination with a horizontal band saw, anda saw guard, of a saw guide including an upper member provided with abracket secured upon the top of the saw guard, said upper member beingextended beyond the guard in a direction in line with the saw, and alower member hinged to the upper member at a point beyond the saw guardand provided with an arm located at the inner side of the bracket havinga longitudinal slot, a standard mounted upon the top of the saw guardand located at a point beyond the bracket, an inclined oscillatory leverpivoted at its upper end to the standard and provided at its lower endwith connecting means operating in the slot of the arm of the lowermember, and operating mechanism for swinging the said lever to open andclose the saw guide.

In testimony, that I claim the foregoing as my own, I have heretoaffixed my signature in the presence of two witnesses.

FRANCIS THOMAS MODONOUGH. itnesses B. HOGAN, E. A. ARNOLD.

